Oiling protection device for steel pipe production

By using a pressure spraying method combining a nozzle and an oil pump, and a rotating brush to spread the oil evenly, the problem of uneven oiling in steel pipe production is solved. This achieves full coverage oiling of the steel pipe surface and oil recovery, thus improving the rust prevention effect.

CN224237153UActive Publication Date: 2026-05-15TIANJIN FENGYANG STEEL PIPE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN FENGYANG STEEL PIPE MANUFACTURING CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing oiling protection devices used in steel pipe production, untimely oil delivery prevents the brush bristles from adhering to the oil, resulting in uneven oiling and affecting the rust prevention effect.

Method used

The system employs a combination of a nozzle and an oil pump for pressure spraying of oil, and a coating brush, driven by a toothed ring, rotates to spread the oil film evenly. Combined with a limiting mechanism and the synergistic effect of the drive wheel and the limiting wheel, it ensures stable transport of the steel pipe and uniform oiling.

Benefits of technology

It achieves uniform oil coating that fully covers the surface of the steel pipe, improving the rust prevention effect, and recovers excess oil through an oil collection mechanism, reducing oil waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224237153U_ABST
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Abstract

The utility model discloses an oil coating protection device for steel pipe production, which comprises a support table, an oil coating mechanism is mounted on the upper surface of the support table, a first motor is mounted on the outer surface of the oil coating mechanism, a spray head is mounted on the inner top wall of the oil coating mechanism, an oil pump is mounted on the upper surface of the oil coating mechanism, and a second motor is mounted on the outer surface of the oil coating mechanism. The output end of the oil pump communicates with the spray head through a connecting pipe, and the upper surface of the supporting table is fixedly connected with a first driving mechanism and a second driving mechanism. According to the device, the mode that a spray head is matched with an oil pump is adopted, oil liquid is evenly sprayed to the surface of a steel pipe through pressure spraying, the problem that an oil film is uneven due to a traditional brushing mode is avoided, an oil coating brush is driven by a gear ring to rotate, the oil film is further evenly smeared, and it is guaranteed that the surface of the steel pipe is fully covered; and the driving wheels and the limiting wheels work together, so that stable conveying of the steel pipes is guaranteed, and deviation or uneven oiling of the steel pipes is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of oiling in steel pipe production, and in particular to an oiling protection device for steel pipe production. Background Technology

[0002] Steel pipes are hollow steel materials whose length is much greater than their diameter or circumference. They are classified according to their cross-sectional shape into round, square, rectangular, and irregular-shaped steel pipes. According to their material, they are classified into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes. According to their uses, they are classified into steel pipes for transportation pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, and high-pressure equipment. During the production process of steel pipes, in order to prevent the surface of the steel pipes from rusting during transportation, storage, or subsequent processing, it is usually necessary to coat the surface with oil to form a protective film.

[0003] According to Chinese Patent No. CN222402050U, a coating and protection device for steel pipe production includes a base, an oiling sleeve fixedly installed on the top of the base, a through hole in the middle of the oiling sleeve, a concave oil groove in the middle of the through hole, a rotatable rotating ring installed inside the concave oil groove, brush bristles installed on the inner arc surface of the rotating ring, a fixing plate fixedly installed at one end of the base, and two rotating pins rotatably connected to one end of the fixing plate. A conveying clamping wheel is fixedly installed on the upper part of each of the two rotating pins. Although the above-mentioned patent solution can perform a comprehensive and uniform oiling operation on the surface of the steel pipe during the conveying process, because the oil is stored in the concave groove, the brush bristles inside the rotating ring can only contact the oil when rotating. If the oil conveying control is not timely, the brush bristles may not adhere to the oil, resulting in uneven oil coating. Therefore, we propose a coating and protection device for steel pipe production to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an oiling and protection device for steel pipe production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An oiling and protection device for steel pipe production includes a support platform. An oiling mechanism is mounted on the upper surface of the support platform. A first motor is mounted on the outer surface of the oiling mechanism. A nozzle is mounted on the inner top wall of the oiling mechanism. An oil pump is mounted on the upper surface of the oiling mechanism. The output end of the oil pump is connected to the nozzle through a connecting pipe. A first driving mechanism and a second driving mechanism are fixedly connected to the upper surface of the support platform. An oil storage tank is fixedly connected to the upper surface of the first driving mechanism. The oil storage tank is connected to the input end of the oil pump through a connecting pipe. A limiting mechanism is provided inside the second driving mechanism. An oil collecting mechanism is mounted on the bottom surface of the support platform.

[0007] In a further embodiment, both the first driving mechanism and the second driving mechanism include a support frame, and a driving wheel is rotatably connected inside the support frame via a bearing. A second motor is mounted on the outer surface of the support frame, and the output end of the second motor is connected to one end of the driving wheel.

[0008] In a further embodiment, the limiting mechanism includes a sliding frame, the interior of which is rotatably connected to a limiting wheel via a bearing, the upper surface of the support frame has two sliding holes, each of which is slidably connected to a sliding rod, the bottom end of each sliding rod is connected to the upper surface of the sliding frame, and the outer surface of each sliding rod is fitted with a spring.

[0009] In a further embodiment, the oiling mechanism includes an oiling shell, an internal gear ring, an oiling brush mounted on the inner wall of the gear ring, and two sets of gears rotatably connected inside the oiling shell via bearings. The outer surface of each gear meshes with the outer surface of the gear ring, and the output end of the first motor is connected to one of the gears.

[0010] In a further embodiment, the oil collecting mechanism includes an oil collecting hopper, the bottom end of which is fixedly connected to an oil drain valve, and the bottom surface of the oil coating shell is fixedly connected to an oil drain pipe, the bottom end of which passes through the support platform and extends into the interior of the oil collecting hopper.

[0011] In a further embodiment, a controller is installed on the outer surface of the oiling mechanism, a fixed frame is fixedly connected to the bottom surface of the support platform, an oil level window is provided on the outer surface of the oil storage tank, and an oil filling hopper is fixedly connected to the upper surface of the oil storage tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses a combination of a nozzle and an oil pump to spray oil evenly onto the surface of the steel pipe through pressure spraying, avoiding the uneven oil film problem caused by traditional brushing methods. The oiling brush rotates under the drive of the toothed ring to further spread the oil film, ensuring full coverage of the steel pipe surface and improving the rust prevention effect. The limiting mechanism can automatically adjust the position of the limiting wheel through the elastic cooperation of spring and slide bar to adapt to the conveying needs of steel pipes of different diameters. The drive wheel and the limiting wheel work together to ensure stable conveying of the steel pipe and avoid steel pipe deviation or uneven oiling. The oil collection mechanism collects the dripping excess oil through the oil collection hopper and discharges it through the oil drain valve to realize oil recovery. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of an oiling and protective device used in steel pipe production.

[0015] Figure 2This is a side view of the second drive mechanism in an oiling and protection device for steel pipe production.

[0016] Figure 3 This is a side sectional schematic diagram of the oiling mechanism in an oiling protection device for steel pipe production.

[0017] Figure 4 This is a top view of the support platform in an oiling and protection device for steel pipe production.

[0018] In the diagram: 1. Support platform; 2. First drive mechanism; 3. First motor; 4. Oil collection mechanism; 401. Oil collection hopper; 402. Oil discharge valve; 403. Oil discharge pipe; 5. Second drive mechanism; 501. Support frame; 502. Drive wheel; 503. Second motor; 6. Limiting mechanism; 601. Sliding frame; 602. Limiting wheel; 603. Sliding hole; 604. Sliding rod; 605. Spring; 7. Nozzle; 8. Oil pump; 9. Oiling mechanism; 901. Oiling shell; 902. Gear ring; 903. Oiling brush; 904. Gear; 10. Controller; 11. Oil storage tank; 12. Oil level window; 13. Oil filling hopper; 14. Fixing frame. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 In this utility model, an oiling and protective device for steel pipe production includes a support platform 1. An oiling mechanism 9 is mounted on the upper surface of the support platform 1. A first motor 3 is mounted on the outer surface of the oiling mechanism 9. A nozzle 7 is mounted on the inner top wall of the oiling mechanism 9. An oil pump 8 is mounted on the upper surface of the oiling mechanism 9. The output end of the oil pump 8 is connected to the nozzle 7 via a connecting pipe. The oiling mechanism 9 includes an oiling shell 901. A toothed ring 902 is provided inside the oiling shell 901. An oiling brush 903 is mounted on the inner wall of the toothed ring 902. The interior of the oiling shell 901... Two sets of gears 904 are rotatably connected by bearings. The outer surface of each gear 904 meshes with the outer surface of the gear ring 902. The output end of the first motor 3 is connected to one of the gears 904. The nozzle 7 in the oiling mechanism 9, with the cooperation of the oil pump 8, sprays oil evenly onto the surface of the steel pipe through pressure spraying. Then the steel pipe enters the gear ring 902. The first motor 3, in cooperation with the gears 904, drives the oiling brush 903 in the gear ring 902 to rotate. The oiling brush 903 further spreads the oil film evenly to ensure that the surface of the steel pipe is fully covered.

[0023] The upper surface of the support platform 1 is fixedly connected to the first drive mechanism 2 and the second drive mechanism 5. Both the first drive mechanism 2 and the second drive mechanism 5 include a support frame 501. The inside of the support frame 501 is rotatably connected to the drive wheel 502 through the bearing. The outer surface of the support frame 501 is equipped with a second motor 503. The output end of the second motor 503 is connected to one end of the drive wheel 502. The second drive mechanism 5 is used to transport the steel pipe when it enters the oiling mechanism 9. When the tail end of the steel pipe is separated from the second drive mechanism 5, the first drive mechanism 2 cooperates with the steel pipe to transport it, thereby ensuring the stable transport of the steel pipe. The upper surface of the first drive mechanism 2 is fixedly connected to the oil storage tank 11. The oil storage tank 11 is connected to the input end of the oil pump 8 through the connecting pipe.

[0024] The second drive mechanism 5 has a limiting mechanism 6 inside. The limiting mechanism 6 includes a sliding frame 601. The sliding frame 601 is rotatably connected to a limiting wheel 602 through a bearing. The upper surface of the support frame 501 has two sliding holes 603. Each sliding hole 603 is slidably connected to a sliding rod 604. The bottom end of each sliding rod 604 is connected to the upper surface of the sliding frame 601. The outer surface of each sliding rod 604 is fitted with a spring 605. The limiting mechanism 6 can automatically adjust the position of the limiting wheel 602 through the elastic cooperation between the spring 605 and the sliding rod 604 to adapt to the conveying needs of steel pipes of different diameters, avoid steel pipe deviation or uneven oiling. The synergistic effect of the drive wheel 502 and the limiting wheel 602 ensures stable conveying of steel pipes and reduces slippage or jamming.

[0025] An oil collection mechanism 4 is installed on the bottom surface of the support platform 1. The oil collection mechanism 4 includes an oil collection hopper 401. The bottom end of the oil collection hopper 401 is fixedly connected to an oil drain valve 402. The bottom surface of the oil coating shell 901 is fixedly connected to an oil drain pipe 403. The bottom end of the oil drain pipe 403 passes through the support platform 1 and extends into the interior of the oil collection hopper 401. The oil collection mechanism 4 collects the dripping residual oil through the oil collection hopper 401 and discharges it through the oil drain valve 402 to achieve oil recovery. A controller 10 is installed on the outer surface of the oil coating mechanism 9. A fixing frame 14 is fixedly connected to the bottom surface of the support platform 1. An oil level window 12 is provided on the outer surface of the oil storage tank 11. An oil filling hopper 13 is fixedly connected to the upper surface of the oil storage tank 11. The controller 10 centrally controls the operating parameters of the first motor 3, the second motor 503 and the oil pump 8 to achieve precise adjustment of the oil coating speed, oil volume and delivery rhythm. The oil level window 12 and the oil filling hopper 13 facilitate real-time monitoring and replenishment of oil, reducing manual intervention.

[0026] The working principle of this utility model is as follows:

[0027] In use, the device is first supported in the operating position by the fixing frame 14, the power supply of the device is turned on, oil is poured into the oil tank 11, and the steel pipe to be oiled is passed between the limiting wheel 602 and the drive wheel 502 so that the steel pipe enters the oiling mechanism 9. The device is started by the controller 10, and the second drive mechanism 5 drives the drive wheel 502 to cooperate with the limiting wheel 602 to transport the steel pipe. The nozzle 7 in the oiling mechanism 9, with the cooperation of the oil pump 8, sprays the oil evenly onto the surface of the steel pipe through pressure spraying. Then the steel pipe enters the gear ring 902, and the first motor 3, in cooperation with the gear 904, drives the oiling brush 903 in the gear ring 902 to rotate. The oiling brush 903 is used to further spread the oil film evenly to ensure that the surface of the steel pipe is fully covered.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oiling and protective device for steel pipe production, characterized in that: The system includes a support platform (1), an oiling mechanism (9) is installed on the upper surface of the support platform (1), a first motor (3) is installed on the outer surface of the oiling mechanism (9), a nozzle (7) is installed on the inner top wall of the oiling mechanism (9), an oil pump (8) is installed on the upper surface of the oiling mechanism (9), and the output end of the oil pump (8) is connected to the nozzle (7) through a connecting pipe. A first drive mechanism (2) and a second drive mechanism (5) are fixedly connected to the upper surface of the support platform (1). An oil storage tank (11) is fixedly connected to the upper surface of the first drive mechanism (2), and the oil storage tank (11) is connected to the input end of the oil pump (8) through a connecting pipe. A limiting mechanism (6) is provided inside the second drive mechanism (5), and an oil collecting mechanism (4) is installed on the bottom surface of the support platform (1).

2. The oiling and protective device for steel pipe production according to claim 1, characterized in that: The first drive mechanism (2) and the second drive mechanism (5) both include a support frame (501). The inside of the support frame (501) is rotatably connected to a drive wheel (502) via a bearing. A second motor (503) is mounted on the outer surface of the support frame (501). The output end of the second motor (503) is connected to one end of the drive wheel (502).

3. The oiling and protective device for steel pipe production according to claim 2, characterized in that: The limiting mechanism (6) includes a sliding frame (601), and a limiting wheel (602) is rotatably connected inside the sliding frame (601) through a bearing. The upper surface of the support frame (501) has two sliding holes (603), and a sliding rod (604) is slidably connected inside each sliding hole (603). The bottom end of each sliding rod (604) is connected to the upper surface of the sliding frame (601), and a spring (605) is sleeved on the outer surface of each sliding rod (604).

4. The oiling and protective device for steel pipe production according to claim 1, characterized in that: The oiling mechanism (9) includes an oiling shell (901), inside which is provided a toothed ring (902), and an oiling brush (903) is installed on the inner wall of the toothed ring (902). Inside the oiling shell (901), two sets of gears (904) are rotatably connected by bearings. The outer surface of each gear (904) meshes with the outer surface of the toothed ring (902). The output end of the first motor (3) is connected to one of the gears (904).

5. The oiling and protective device for steel pipe production according to claim 4, characterized in that: The oil collection mechanism (4) includes an oil collection hopper (401), the bottom end of which is fixedly connected to an oil drain valve (402), and the bottom surface of the oil coating shell (901) is fixedly connected to an oil drain pipe (403). The bottom end of the oil drain pipe (403) passes through the support platform (1) and extends into the interior of the oil collection hopper (401).

6. The oiling and protective device for steel pipe production according to claim 1, characterized in that: The outer surface of the oiling mechanism (9) is equipped with a controller (10), the bottom surface of the support platform (1) is fixedly connected with a fixing frame (14), the outer surface of the oil storage tank (11) is provided with an oil level window (12), and the upper surface of the oil storage tank (11) is fixedly connected with an oil filling hopper (13).